Combined vaporizer and air-inlet device



Dec. 21

z. E. WILKA v coumnn vAPoRzm A1111 AIR INLET DEVICE Filed sept. s, 1925 Patented Dec. A2l, 1926.

f its si 1 ZONA n.1 winni? or trrzrcHELnsoUrH DAKOTA.

: COMBiINED varoniznn AND an-mnnrnnvcn.

- Application fusa september v3, i925. serial ivo/54,348. A(

l, This invention relates to means for injecting heated airinto theintakefmanifold a'pluralit-y of points, the air tube being pro- Y vvided with means whereby the amount of air passing throughr thedtube and rso discharged may beregulated.

[A lfurther obl'ect is to provide a device o-f this character in which the inner wall of the double walled section'introduced into the f -length of the intakermanifold is formed' with corrugations lwhereby to secure the [greatest amount of heating space between this heatedcorrugated tube and the charge" passing therethrough.

Other objects'wlllappear inthe course of Vthe following description.

, My invention is illustrated in the` accomi Janinodrawin'o" wherein ri n B7 inanifoldof an internal combustion 30 Figure 1 is Yan elevation of aj'portion ofa v englne wit-hmy linvention applied thereto; l

Figure ,2f is a vertical sectional view through'my hot spot showing in section the y V l V"be andlreduce the amount of gasoline used adjacent portionsvof the manifold; Figure is a'section on the line `Figure 2. f

Referring to t thatY 'my device d comprises anV exteriorly cylindrical wall 10':and an interiorly corruf gated wall 11, these walls being connected at `theirends by theend walls 12 and 13.V Bolt holes 14 are provided whereby' this device may be engaged with the flanged ends of the manifold. TheV exterior wwall 10is provided with an aperture 15 for .the introduction of hot products of combustion froml the eX- haust, foreinstance. The partition 16 eX- tends acrossthe space b'etweenthe walls 10 and llandon the oppositeside of this parrtition an outlet (for the hot products-of combustion is provided,- designated 17. Thus the hotl products will circulate throughthis hollow casing. Y l Disposed against the wall 18v'of the uppermost corrugation and on the inside there,- of is'a pipe or duct 19, there being apertures 2O discharging through this wall 18A--v he drawing, it willbe seen at one point the iductjis formed withanoutwardly extending pipe21 leading` to a source ik figurine of air and provided witha valve 22 whereby.'

theamount of airl passing through this pipe may be controlled. Thus it will'be-seen' that the hot products of combustion circulating through the liacket kformed l`by 'the walls l10 land' 11will act to heat'the charge passing throughthe intakeA passage and at the same 'time the hot' gases circulating through-,the

iacket will heat the air within the tube orv -'duct 19 and this hot airwill be discharged or sucked intothe intake manifold.

Itl will be particularly noted that the wall 18is disposed at an angl'eto the longitudinal axis of the jacket,- that thisjangle is less than the angle'voffthe lower-wall of .the'same corrugation and thean'gle-of the walls ofl the outer corrugationaand that the charge as it sweeps past the' corrugation` nearestthe engine will actually tendto move outward and ywill sweepover the passages and take up the air ',andcarry` it4 along Awith the `vcharge randv thoroughly mixi'it therewith. Thus the lcharge will be heated `by theih'ot j acket and at the same time. a certainA amount -ofheated air will bescaused to mingle with the charge, This will renderthe charge soV much more effect-ivethan it otherwise would j by securing I more Y perfect combustion.

It will be seen thatv the corrugations formed bythefwall V11V or formed in the wall-'11' constitute aseries: of baffles, these the diameter of the manifold. with which the device is associated vso that the device does not constrict the manifold but permitsr free passage of the fuel withoutV increasing ico the speedthereof This,V together with the fact, that vthe 'inner peaks .23 formed by the corrugations are slightly rounded, permits unvaporized fuel to creep along the wallsof the corrugations without being j thrown therefrom so thatthey are subjected-to these heated walls and'` thoroughly vaporized be- Iningled with the incomingair. Y

Nhile I have describedthe fore reachingl the air inlets where they are device as havV ing a controllable air` inlet it will, of course,

Y beobvious lthat the device may be connected with the base of the engine t draw therefrom air whichY is already partially Vladen with gasoline and oilfumes. lViththis con# struction, which have not illustrated, the Valve QQ may be eliminated.

I claiinzl.' A combined Yvaporizer and auxiliary air inlet devicevcomprising an annular cham belg, the` annular chamber having an inner` corrugated wall offsubstantially uniform Y thickness'surrounding a. charge'passage and adapted to beV disposed in the lengthl ofthe intakemanifoldof an engine, and having an exhaust inlet-and outlet, the chamber ad-y jacent theV end.- nearest the engine being formed'l with annular duct having aperturesY opening through the inner. wall of the chamberto the central passage thereof, thev airinlet; duct hav-ingaan air. inlet pipe with mea-ns for. controllingy the passageV of air therethreiigh.V Y f Y Y.

- 2: Afcombinedvaporizer and auxiliary air inlet devicecomp'rising an annular chamber Vadapted to be disposed withinl the' length ofL anlintake manifold, the inner wall of: the

chamber being of uniform thickness but corrugatedy and thefchamber having an inlet opening and an, outlet opening, the inlet opening.: beingI adaptedfto` beconnected to the exhaust. of the engine, the chamber being formed with'an'- annular duct disposed at.

l vtheoutlet-'..endof the chamber and against the corrugated wall! thereof, there being open ings from said duct to the inner faceeof the chamber whereby to discharge air intovthe interiorfof'the manifold, the duct havingan air inletr pipel extending outward froml the wall'of the chamber Vand' provided with a valve.. y 3. A combined vaporizer and auxiliary air inlet devieeicomprising an annular chamber adapted; to bej disposed in the length ofthe intake manifold: and forming part thereof, thefinnerwalb of this annular chamber be-.

vi,eii,2ee

ing corrugated, the eXit end of the inner vwall beingfoutwardly fla-red, the' chamber having anY intake and an outlet, the intake 'being adapted to beconnected toV therexhaust ofi the engine, aduct` formed against said adapted to be disposed'. inthe lengthV of-"tlie intake manifold. andV having'an exhaust inlet and, an exhaust outlet, the inner wzallof thech'a'mber -being formed to providea plu rality of baflies disposed atany angle to the direction of movementof the charge, the bafles defining aI central fuel*passage,f and means for discharging air through one ofV said baffles and into the thereby.l

5. A combinedvaporizer and-auxiliary'aii inlet device, comprising 'an annular chainber., the inner wall of which defines a' fuelV fuel passage.defined.

passage, the inner face Aofj said wall'being corrugated, the chamber having/anY exhaust inlet. and. outlet and*v thechamber adjacent the end'l nearest theengine. being `formed with. an annulanair duct having apertures opening through the inner wallofthe chamberA tothe central passage thereof, saidA apen `tures being. radial tothe .axis off the"` charge passage. whereby they streams of f air discharged'. from the said apertures will.' iin- Y-pinge against each other at 'the center of the passage.;A l

In testimony` whereofA I, hereuntoaix my signature. f f Y VVZONA- n; WILKA, 

